SpaceX, founded by Elon Musk in 2002, has become one of the world's most valuable private aerospace companies, most recently valued around $210 billion in private funding rounds. An initial public offering at a $3 trillion market cap would represent roughly a 14x premium to current private valuations. The 17% odds on this outcome reflect market skepticism about whether SpaceX can achieve such an exceptional valuation premium within the next 18 months, considering regulatory complexities, competitive dynamics, and broader macroeconomic conditions. A $3 trillion IPO would place SpaceX among the most valuable public companies ever—comparable only to a handful of mega-cap technology firms. The resolution criteria are straightforward: if SpaceX files an S-1, goes public, and opens trading with a market capitalization exceeding $3 trillion, the market resolves YES. If the IPO does not occur before the end of 2027, or if the opening market cap is $3 trillion or below, the market resolves NO. Current volume and liquidity suggest moderate trader interest, with the low odds indicating that most participants believe sub-$3 trillion valuations are more probable.